<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title>Here be tables</title>
</head>
<body>

<table id="base">
  <tr>
    <td>Hello</td>
    <td>World</td>
    <td>(Cheese!)</td>
  </tr>
</table>

<table>
  <tr id="hidden_text">
    <td>some text
      <div style="display: none;">some more text</div>
    </td>
  </tr>
</table>

<table>
  <tr>
    <th colspan="3" id="th1">Heading</th>
  </tr>
  <tr>
    <td id="td1">Data 1</td>
    <td colspan="2" id="td2">Data 2</td>
  </tr>
</table>

</body>
</html>